Hashtable data

Is there a way to have a hash table as a select list that, when the user selects an option, it populates a paragraph for that option in a label? I have the code that displays the selected item's value, but I don't know how to add a paragraph or sentence that doesn't show up in the select list. I want a few options, and then wen they pick an option, it says something else (like something that wasn't in the list, like a paragraph or sentence about the option picked). Can anyone help with that?